Improvement in machines for separating waste from sawdust



DLC. NEWELL.

Patented May 9,1876. v

MACHINE FOR SEPARATING WASTE FROM SAW-DUST.

UNITED STATES PATENT GFFICE.

DARIUs o. NEWELL, or YoNKEas, NEW YORK.

IMPROVEMENT IN MACHINES FOR SEPARATING lNA-STE FROM SAWDUIST.'

Specification forming part of Letters Patent No. 177,268, dated May`9, 1876; application tiled January 18,1876.

To all whom it may concern:

Be it known that I, DARIUs G. NEWELL,.ot'

I Yonkers, in the county of Westchester and vthe fine chips .i'romthe larger; and it is'accomplished 'by running the chips, as they come from the machine, over a sieve or screen placed in the slide or-chute through which theyare carried to the fire-room. In their passage over the screen the line portions of the chips, the size of which is regulated by the size of themeshes of the screen, are separated by fallingthrough the meshes, wlnle the larger portions are transmitted by the carrier-chainalong the slide. The screen has a short, quick motion ot' its own, imparted as if by ,a blow, which prevents the choking of its meshes. The chain may be kept tight by any of the means usually employed in similar cases for that purpose.

To enable others skilled in the arts to which it appertains to make and use my invention, I will proceed to describe its construction and operation, with reference to the drawing.

Figure l is a sectional elevation of the machine as applied to a horizontal slide, and Fig. 2 is a plan of the same.

The carrier-chain a is provided with the cross-hars b, and is put 'in motion by the rotation ot' the drum c, which may be driven by a belt on the pulley (l. The machine has a similar drum at the other end. The screen e is mounted on a frame, which is carried ou the vibrating levers f, and receives its lnotion through the rod g from the rotation of a cam Y with three spurs ont-he shaft h, which has a pulley, t', at one end, and is driven by a belt from thef pulley lc on the main drum of the machine. The strips l cover the open joints between the frame of the slide and that of the screen.

The novelty and usefulness of my invention consist in the separation from the general mass of the chips, resulting' from the use of Wood-working machinery, of those iiner par` ticles which are the more valuable; and, while I do not claim the use oi' a sieve for the separation ot' small matter from the larger, with which it is intermixed, my improvement consists in the treatment ot' refuse chips by a process involving the use of a sieve, by which a portion ot' them is separated for a more valuable purpose. l

It may he used in connection with a planing-mill, or a molding-machine, or a grindingmach-ine, or any other wood working machinery.

I claim as my invention and desire to secure by Letters Patent- The combination, in a carrier for chips from wood-working machinery, of the screen e, vi-

brating levers f,'the cam on the shaft h, the chaina., and the cross-bars b, constructed, arranged, andV operated substantially as de- '.seribed, and for the purpose specified.

DARIUS O. NEWELL. Witnesses:

DAVID E. GWYNNE, WM. AKEMBLE HALL. 

